Madrid - Veteran striker Aritz Aduriz, 36, has signed a one-year contract extension that will see him stay at Athletic Bilbao until 2019, the La Liga club announced Wednesday.
The buyout clause for the 13-times capped Spain international remains 40 millon euros ($47.3m).
Aduriz has already scored nine goals this season, four in La Liga and five in the Europa League.